Chapter 8. Data: actions, preferences, and files
This chapter covers
- Accepting user input through controls
- Allowing user choice through preferences
- Accessing and creating files
In the preceding chapters, we offered a tutorial on the most important features of the SDK: we outlined Objective-C and the iPhone OS; we explored the two main tools, Xcode and Interface Builder; we examined view controllers of all types; and we looked at the standard event and action models for the iPhone and iPad. In the process, we tried to provide the strong foundation that you need to do any type of iPhone OS programming. Armed with that knowledge, and with the extensive documentation available online (or as part of Xcode), you should be able to start programming right away.
But we also want to offer you some additional information about many of the SDK’s best features. In the coming chapters, we’ll touch on some of the major categories of SDK tools and show you how to use them.